Plasma Cortisol Levels of Dogs at a County Animal Shelter

Hennessy, M. B., H. N. Davis, M. T. Williams, C. Mellott and C. W. Douglas. Plasma cortisol levels of dogs in a county animal shelter. Physiol Behav 62(3) 485-490, 1997.–Plasma cortisol levels were examined to assess the stress of dogs in a county animal shelter. Groups of dogs confined in the shelter for their 1st, […]

Female influences on pair formation, reproduction and male stress responses in a monogamous cavy (Galea monasteriensis)

We examined the possible existence of, and female contributions to, pair bonds, as well as the relation of social preference to mating selectivity, in a recently identified wild guinea pig, the Muenster yellow-toothed cavy (Galea monasteriensis). In Experiment 1, females housed for ~ 20 days in an apparatus in which they could choose to approach and interact […]

The effects of early separation on the dairy cow and calf

Most dairy producers believe that early separation of the cow and calf is necessary for reproductive efficiency, to minimise health problems and to improve the ease of milking. In addition, many consider that it is less distressing for both animals if separation occurs earlier rather than later. In this paper we review the welfare and […]

Psychopathology in great apes: Concepts, treatment options and possible homologies to human psychiatric disorders

Many captive great apes show gross behavioral abnormalities such as stereotypies, self-mutilation, inappropriate aggression, fear or withdrawal, which impede attempts to integrate these animals in existing or new social groups. These abnormal behaviors resemble symptoms associated with psychiatric disorders in humans such as depression, anxiety disorders, eating disorders, and post-traumatic stress disorder. Due to the […]

Public attitudes towards grief in animals

Animals under human management are often separated from conspecifics, which may lead to behaviour indicative of separation distress or grief. For the purposes of this paper, grief is considered as a biological response to separation, indicated by a bi-phasic ‘protest-despair’ behavioural response. It is reasonable to assume that only animals which are able to form […]

Does owning a companion animal influence the belief that animals experience emotions such as grief?

This paper investigates public attitudes towards emotional experiences in animals. We surveyed 1,000 members of the public to investigate how companion animal ownership affects the attribution of emotions to animals and beliefs about whether animals can grieve. Respondents who owned a companion animal were more likely to believe that some animals can experience grief compared […]

The effect of conspecific removal on behavioral and physiological responses of dairy cattle

Adverse social and welfare implications of mixing dairy cows or separating calves from their mothers have been documented previously. Here we investigated the behavioral and physiological responses of individuals remaining after conspecifics were removed. We conducted a series of 4 experiments incorporating a range of types of different dairy cattle groupings [experiment 1 (E1), 126 […]

Loner or socializer? Ravens’ adrenocortical response to individual separation depends on social integration

Non-breeding common ravens (Corvus corax) live in complex social groups with a high degree of fission–fusion dynamics. They form valuable relationships and alliances with some conspecifics, while taking coordinated action against others. In ravens, affiliates reconcile their conflicts, console each other after conflicts with a third party, and provide each other with social support — […]

Physiological and behavioral responses to routine procedures in captive common marmosets (Callithrix jacchus)

The effect of routine captive procedures on the welfare of species used as experimental models in biomedical research is of great interest, since stress may alter the generalization and interpretation of results. This study investigated behavioral and endocrine (fecal cortisol) reactivity patterns in common marmoset (Callithrix jacchus) adult males (N = 10) and females (N […]